A professional nursing practice model is an approach that enables nurses to demonstrate their autonomy and accountability in delivering their care to patients. An evaluation program for a professional nursing practice model is required to assess the effectiveness of this model toward an improvement of nursing service in this model unit. The evaluation plan is involved in three aspects: structure, process, and outcome. The aspect of structure is evaluated to assess a commitment of the nursing service organization. The aspect of process is directed to evaluate an involvement and participation of all components in a nursing care delivery system. And finally, the aspect of outcome is assessed to determine the satisfaction of patients and the staff. A program of evaluation is best to be conducted twice for a period of three years during which the first evaluation is used as a baseline data for an incoming evaluation.